Innersole and method of making the same



A ril23 ,1946. Fj AYERS 2,398,760

INNERSOLE AND METHOD OF MAKING THE SAME Filed Maich 26. 194;

i Vllil/ll/llm I 122% fivd lg I Figure his a receiving rib. I

Patented Apr. 23, 1946 i 2,398,760 'INNERSOLE AND METHOD or MAKINGMTHESAME man avers W tertown, Mass. t ApplicationfMarch 26, 1943,Serialj Pio. 480,60"i" olaims (as-Lair 7 This invention relate toinnersoles for shoes, particularly of the welttype, and ha for an objectto produce an' innersole from thin stock and provided with anon-fioating inseam-receiving rib of ample strength and of suflicientsize for guiding engagement with the inseam stitching machine, andwithout the. possibility of grooves in the top face of th innersoledeveloping during use.

A further object,fin the preferredform, is to so construct the innersolethat its trength during use is not dependent on the permanency of cementused in its construction. This makes it possible to employ relativelycheap and plentiful temporary cements in its construction. y -Stillanother objectof the invention is to provide a construction a V d amethod of manufacture which entirely avoids the use of machines whichmay be difiicult to procure. I

The stock which may be employed for the innersole blank is much thinnerthan ordinarily employedin welt shoe construction, and too thin toreceive an inside'channel of any ubstantial depth.

-FOr a more complete understanding of thisinvention, referencemay be hadto the accompanyme drawing in which 1 Figure 1 is a perspective view ofthe thin sole blank' artly reinforced With a fabric layer.

Figure 2 is a perspective view showing the. reinforced blank rounded.

Figure 3, is a fragmentary perspective view of an innersole blankreinforcedwith' fabric at the forepart only. I

Figure 4 is a view similar to Figure 3, butshowing the fabric,reinforcement extendedtln*ughout thefore'part and shank'only;

detail sectional view on line 5 5 ofF'igure 2. I Y

Figure 6 i a view somewhat similar to Figure 5, but showing the outsidechannel and a portion of the'stitch-receiving rib.

:Figure 7 is a sectional view showing the lip folded upwardly andbackwardly against the rib f imerted; whether a sewing machine or astapling member'of Figured to form thecomplete stitch Figure 8 is a viewsimilar to Figured, but showirig a modification. I

' Figure 8a is a 'vieW similar to Figure 8, but showing a furthermodification.

Figure 9 is a view 7 but showing the tions 7 pleted stitch-receivingrib.

. only a cheap,

"NIT'ED "STATES PArENT oFFIcE Figure 10; i a bottom plan view of aninnersole employing thegblank'olf Figure3.

Figure llfis; a detail sectional view on line |l --lIofFig'ure"10"-.

Referring f rst to" Figures 1 to 7, inclusiveya thin innersole blank I,which may be too thin for use a an innersole for a welt shoe asheretofore constructed, has secured to one face there of, as by cement,'a reinforcing fabric layer 2. This blank thus reinforcedmay be roundedas shown in figure 2 to 'form' areinforced soleshaped blank, thereinforcement extending over the for part shank and heel; If desiredhowever, the reinforcing layer mayextend only through the forepart, asshown in Figure or throughout the forepart and shank, asshown in Figure4.

For the purpose of this invention, the cement employed for applying thereinforcing need be temporary cement, as it is not relied upon to impartany substantial strength to the innersole after the innersole has beenincorporated in the shoe.

For the purpose of. providing a, stitch-receiving rib for this blank,the innersole i channeled inwardly about its margin as by the out, 3 ofFigure 6, this channeling extending ordinarily throughout the extent towhich the reinforcing fabric is applied, but at least about theforepart, andit may be'extended through the shank and forepart,particularly when performed on a blank such as shown in Figure 4, orentirely around the innersole. The lip formed by this channelingoperation includes the margin of th reinforcing fabric which extendentirely across the Width of the innersole, and a very thin portion ofthe original blank so thin in fact, that were it not for the reinforcinglayer, it could not well be cut with the usual channeling machine. Thislip or feather forms a portion of'the stitch receiving rib in'thecompleted inner-sole, but it extendsinwardly to such a small extent thatit would not project sufiicientlyfar from the surface of the innersolewhen turned up to form a guide for the-machin by wh c thez nseam f tners are mac i w u d form the entire rib, M

The remaining portion of the rib is formed up by an additional ribmember cemented or otherwisesecured to the adjacent face of theinnersole. As shown in Figure 6; it comprises a strip of fabric foldedto form a double upstanding layer at 4 and with oppositelyextendingmarginal-flangesfi and 6. This strip may be of bias fabric in order tofacilitate conforming it to the it be sufliciently strong to tor.

together,- a lip'turning 'machine having a external hammer'l-forengagement with the upwardly turned lip may be employed, and theim-.

form a proper guide for I and cemented to the double layer 4, the entirerib being preferably inclined inwardly as shown in Figure '7. Tofacilitate the fixing of these parts I ing of the outer stitches at pactmay be taken by a roller 8 against the outer conical face of which thedoubled layer 4 may be supported. This securement of rib together by theparts together prior 'to the inseaming operation, at which time, offasteners are passed through the various components of which the rib 'isformed and secure them firmly together, the double layer 4 being ofsufficient width to guide the innersole with respect to the inseamingmachine, while theouter components formed by the outwardly and inwardlyturned lip add to the substance through which the inseam fasteners areplaced. It will be noted that the stitch-receiving rib includes themarginal portion of the fabric reinforcement and also includes anintegral part of the original blank. Thus the rib is not a floating rib,but the cemented securement ,of the parts together need not be reliedupon for imparting the desired strength to the rib and its securement tothe innersole. Under present conditions where permanent cements areexpensive and difficult to obtain, this isan exceedingly important fac-It will also be noted thatno tucking of the fabric margin against theinner face of an upstanding rib is employed in constructing the. rib,the fabric being applied to the flat blank, so that tucking machines,which are alsonot readily available, are wholly unnecessary. The onlymachines employed are the machines for inwardly channeling, for foldingand applying the rib strip, and for turning the outer lip inwardly,which are freely ava'lable to the trade. I

In Figures 8, 8a., and '9'is illustrated a modified construction offabric rib portion which comprises only a single strip IU-foldedsubstantially at its center of Width and preferably stitchedtogether adjacent to the line of fold at II. This may be applied to thereinforced and channeled blank as shown in Figure 8 with its line offold facing outwardly and substantially at theinner edge of the channelfrom the margin, after which the marginal rib formed by the channelingoperation is turned upwardly and inwardly and cemented to the upperlayer ofthe strip- ID, as shown in Figure 9. In some cases it may be theparts of the more convenient to apply the strip l0 substantiallyflushwith the outer margin of the reinforced innersole blank, gagingitspositiondirectly by the margin of this blank. '-It may therefore beapplied as shown in Figure 8a, with its fold line facing inwardly, afterwhich both the lip l2 and the strip ID are turned inwardly together toform the structure of Figure ,9. The line of stitching H is of value inthat it tends to hold the rib upwardly and inwardlyinclined in theposition shown in Figure 9. Here again, it will be noted that thelip-portion .12 when turned'up is too low to form a proper ,guide forthe inseam securing machine, but theI-strip l0 may be made of suflicientwidth to perform t function. V l

cement is only necessary to hold employed, .and particularly course, theinseam Particularly where the reinforcing fabric is terminated at theforward end of the shank portion, it is desirable to secure the shankportion of the folded fabric strip to the blank by means such asstitching, since there is no reinforcin strip 2.at the shank to providethe requisite strength for the inseam fastenings. For this purpose,stitching may be placed in the shank portion through the inner flange 6or through the outer portion of the inwardly turned double rib 4,'orboth, as shown in Figure 11. The placl5 has the function of tending tohold the rib inwardly inclined,

whichof coursewould not be accomplished by the line of stitchingHipassing through its inner flange. Where a very thin innersole blank iswhere a more or less temporarycement is also used, this stitching is ofconsiderable importance.

- From the foregoing description of certain embodiments of thisinvention it should be evident to those skilled in the art that variousother changes and modifications might be made without departing from thespirit or scope of this invention.

I claim:

1. A sh'oe innersole comprising a thin blank, channeled inwardly aboutits margin to form a marginal feather, a, fabric reinforcement overlyingand cemented to said blank from side to side at least over the forepart,a rib portion overlying and cemented to said reinforcement, said featherand the margin of said reinforcement being turned up and inwardly andcemented to said rib portion and forming therewith the inseam stitchingrib.

2. A shoe innersole comprising an innersole blank, a reinforcing fabriclayer cemented to the forepart across its full width on one side of saidblank and terminating at the shank, a folded fabric strip extendingthroughout the forepart and shank inwardly of the margin thereof and atthe forepart cemented to said layer and in the shank cemented to saidblank, the forepart of said blank being inwardly channeled to form a,lip including the margin of said layer, said lip being turned upwardlyand inwardly andcemented to said fabric strip to form therewith astitch-receiving rib around the forepart, said folded rib beblank, areinforcing fabric layer cemented to the forepart across its full widthon One side of said blank and terminating at the shank, .a folded fabricstrip having a marginal flange secured to said layer and blank andextending throughout the forepart and shank inwardly of the marginthereof, the forepart of said blank being inwardly channeled to form alip including the margin of said layer, said lip being turned upwardlyand inwardly and cemented to said fabric strip to form therewith ,astitch-receiving rib around at least the forepart, said folded stripbeing stitched to said blankin the shank portion through said 4. A ashoe innersole comprising an innersole blank, a reinforcing fabric layercemented t0 the forepart across its full width on one side of said blankand terminating at the shank, a folded fabric strip having a marginalflange secured to said layer and blank and extending throughout theforepart and shank inwardly of the margin thereof, the forepart of saidblank being inwardly channeled to form a lip including the margin ofsaid layer,said'lip being turned upwardly and into the outer margin, afolded strip having a marv wardly and cemented to said fabric strip toform therewith a stitch-receivin rib around at least the forepart, saidfolded strip being stitched to said blank in the shank portion bystitches passing through the outer portion of said inwardly turned ribin position to maintain said rib inwardly inclined.

5. The method which comprises adhesively securing a fabric reinforcinglayer to one face of a thin innersole blank, inwardly channeling saidblank around at least the forepart to form with the margin of said layera marginal lip, progressively applying and cementing a rib strip to theouter face of said layer inwardly of said lip, and then folding said lipand the margin of said layer up and inwardly and cementing said lip andmargin to the outer face of said strip to form therewith thestitch-receiving rib of said innersole.

6. The method which comprises adhesively securing a fabric reinforcinglayer to one face entirely across the forepart of an innersole blank,inwardly channeling said blank around the forepart, to form with themargin of said layer a marginal lip, rogressively applying and cementinga folded fabric strip from the heel seat of said blank throughout theshank and forepart and in said forepart overlying said reinforcinglayer, turning up said lip and cementing it to the outer face of saidfolded strip to form the comr plete stitching rib about the forepart,and in said shank portion stitching said folded layer to said blank.

7. A shoe innersole, comprising an innersole blank, a reinforcing layercemented to a face of said blank at least at the forepart and adjacentginal flange secured to said layer and blank and extendin about theforepart and shank fsaid blank, at leastthe forepart of said blank beinginwardly channeled to form a lip with at least a portion of the marginof said layer, said lip being turned inwardly and cemented to said stripto form therewith a stitch-receiving rib.

8. A shoe innersole, comprising an innersole blank, a reinforcing layercemented to a face of said blank at least at the forepart and adjacent ato the outer margin, a folded strip having a marginal flange secured tosaid layer and blank and extending about the forepart and shank of saidblank, said blank being inwardly channeled about at least the forepartand extending as far back as said reinforcing layer to form a lip withthe margin of said layer, said lip being turned inwardly and cemented tosaid strip to form therewith a stitch-receiving rib.

9. A slice innersole,.comprising an innersole blank, a reinforcing layercemented to a face of i said blank at least at to the outer margin,

the forepart and adjacent a folded strip having a marginal flangesecured to said layer and blank and extending about the forepart andshank of said blank, said blank being inwardly channeled about at leastthe forepart and extending as far back as said reinforcing layer to forma lip with the margin of said layer, said lip being turned inwardly andcemented to said strip to form therewith a stitch-receiving rib, saidfolded strip being stitched to said blank in the shank portion throughsaid flange.

FRED L. AYERS. V

